ECB's Rehn: Monetary policy should not be based on oil prices alone

Transmission to EUR/USD and Bund Yields

The transmission from Rehn's comment runs through two main channels: the euro and eurozone government bonds. If the ECB is seen as less reactive to oil, the euro loses a potential catalyst for upside. Rising oil often boosts the currencies of energy-importing regions only when the central bank is expected to fight the inflation with higher rates. Without that expectation, the EUR/USD pair may remain range-bound or drift lower, especially if the Federal Reserve maintains a more hawkish stance, as discussed in Fed Alert Morning Bid: How Rate Repricing Hits the Dollar and Stocks. The EUR/USD profile shows the pair already grappling with a wide policy divergence. Rehn's comment reinforces that divergence.

In the bond market, Bund yields are likely to stay anchored. The 10-year Bund yield, a benchmark for eurozone borrowing costs, had edged up on oil concerns. Rehn's statement could unwind some of that move. The comment lowers the probability of a rate hike in the near term. The forex market analysis page tracks how such shifts in rate differentials drive currency flows. For now, the message is that the ECB's reaction function is not oil-dependent, which keeps the euro's yield advantage narrow versus the dollar.

Next Marker: June ECB Meeting and Oil Path

The next concrete decision point is the June ECB meeting, where updated staff projections will incorporate the latest oil price path and its impact on the inflation outlook. If oil remains elevated while core inflation stays subdued, Rehn's view could become the consensus, cementing a patient stance. Conversely, if wage data or services inflation surprise to the upside, the ECB might have to acknowledge second-round effects, testing Rehn's position. Traders should monitor the eurozone wage growth indicators and the Brent crude price trajectory. The interplay between these factors will determine whether the ECB's reaction function truly holds, or whether oil eventually forces a rethink. For now, Rehn's comment serves as a clear signal that the ECB intends to keep policy settings steady, focusing on the domestic economy rather than commodity-driven noise.